Home / 115,215.60-172,823.40-102,968.40

Finding the Fourth Proportional to 115,215.60, 172,823.40 and 102,968.40

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Solution

The fourth proportional to 115,215.60, 172,823.40 and 102,968.40 is: 154,452.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,215.60 : 172,823.40 = 102,968.40 : x
  2. Step 2: Convert to fraction form
    115,215.60/172,823.40 = 102,968.40/x
  3. Step 3: Cross multiply
    115,215.60x = 172,823.40 × 102,968.40
  4. Step 4: Simplify right side
    115,215.60x = 17,795,348,980.56
  5. Step 5: Solve for x
    x = 17,795,348,980.56/115,215.60
  6. Step 6: Final answer
    x = 154,452.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.